<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <title></title>
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
    <!-- 新 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css">
    <script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>
    <!--        <script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>-->
</head>
<body>
<div class="container">
    <div>内容：</div>
    <div class="list-group" id="divShow">
        <!--<div class="list-group-item list-group-item-success">1111</div>
        <div class="list-group-item list-group-item-info">1111</div>
        <div class="list-group-item list-group-item-warning">1111</div>
        <div class="list-group-item list-group-item-danger">1111</div>-->
    </div>
    <div class="list-group" id="divUsers">
        在线：<br />
        <!--<div class="btn btn-default">111</div>-->

    </div>
    <div>
        昵称：<input class="form-control" id="txtUserName" value="红领巾" type="text" maxlength="20" style="width: 30%; margin-bottom: 15px" />
        聊聊：<textarea class="form-control" id="txtContent" autofocus rows="6" placeholder="想聊的内容" maxlength="200" required style="width: 60%; "></textarea>
        <button class="btn btn-default" id="btnSend" style="margin-top:15px">发 送</button>
    </div>
</div>
</body>
</html>

<script>

    var tool = function () {

        var paperLoopNum = 0;
        var paperTempleArr = [
            '<div class="list-group-item list-group-item-success">{0}</div>',
            '<div class="list-group-item list-group-item-info">{0}</div>',
            '<div class="list-group-item list-group-item-warning">{0}</div>',
            '<div class="list-group-item list-group-item-danger">{0}</div>'
        ];

        return {

            paperDiv: function (val) {

                var hl = paperTempleArr[paperLoopNum];
                paperLoopNum++;
                if (paperLoopNum >= paperTempleArr.length) { paperLoopNum = 0; }

                return this.formart(hl, [val])
            },
            formart: function (str, arrVal) {

                for (var i = 0; i < arrVal.length; i++) {
                    str = str.replace("{" + i + "}", arrVal[i]);
                }
                return str;
            }
        }
    }

    function showMsg(id, hl, isAppend) {

        if (!isAppend) { $("#" + id).html(hl); } else {
            $("#" + id).append(hl);
        }
    }

    $(function () {

        //初始化工具方法
        var tl = new tool();

        var wsUrl = "ws://172.16.9.6:8/webSocket";
        ws = new WebSocket(wsUrl);

        try {

            ws.onopen = function () {

                //showMsg("divShow", tl.paperDiv("连接服务器-成功"));
            }

            ws.onclose = function () {
                if (ws) {
                    ws.close();
                    ws = null;
                }
                showMsg("divShow", tl.paperDiv("连接服务器-关闭"), true);
            }

            ws.onmessage = function (result) {

                //console.log(result.data);
                var data = JSON.parse(result.data);
                $(data.UserMsgs).each(function (i, item) {
                    showMsg("divShow", tl.paperDiv("【" + item.UserName + "】：" + item.Msg), true);
                });

                var userDataShow = [];
                $(data.UserDatas).each(function (i, item) {

                    userDataShow.push('<div class="btn btn-default">' + item.UserName + '</div>');

                });
                showMsg("divUsers", userDataShow.join(''), false);
            }

            ws.onerror = function () {
                if (ws) {
                    ws.close();
                    ws = null;
                }
                showMsg("divShow", tl.paperDiv("连接服务器-关闭"), true);
            }

        } catch (e) {

            alert(e.message);
        }
        $("#btnSend").on("click", function () {

            var tContentObj = $("#txtContent");
            var tContent = $.trim( tContentObj.val()).replace("/[\n]/g", "");
            var tUserName = $.trim( $("#txtUserName").val()); tUserName = tUserName.length <= 0 ? "匿名" : tUserName;
            if (tContent.length <= 0 || $.trim(tContent).length <= 0) { alert("请输入发送内容!"); return; }
            if (ws == null) { alert("连接失败，请F5刷新页面!"); return; }

            var request = tl.formart('{"UserName": "{0}", "DataType": "{1}", "Msg": "{2}" }',
                    [tUserName, "send", tContent]);
            ws.send(request);
            tContentObj.val("");
            tContentObj.val($.trim(tContentObj.val()).replace("/[\n]/g", ""));
        });
        $("#txtContent").on("keydown", function (event) {

            if (event.keyCode == 13) {

                $("#btnSend").trigger("click");
            }
        });
    })

</script>